Window-cleaning chair.



No. 737,924. PATENTED SEPT. 1, 1903. J. H. HANAVAN.

. WINDOW CLEANING CHAIR.

APPLICATION rum) mm: 11. 1903.

no MODEL.

Fig.1.

No. 737,924. Patented September 1, 1903.

UNrrED STATES PATENT ()FFICE.

. JOHN H. HANAVAN, OF SAN FRANCISCO, CALIFORNIA.

WINDOW-CLEANING CHAIR.

SPECIFICATION forming part of Letters Patent No. 737,924, dated September 1, 1903.

Application filed June 17,1903. Serial No. 161,847. (No model.)

T whom it y con/067'": of engagement with the Window-sill the strain Be it known that 1, JOHN H. HANAVAN, a upon the windw-chair is a direct outward citizen of the United States, residing at San pull upon the hooked portions 9. By reason Francisco, in the county of San Francisco and of the sides being made of angle-iron and on 5 State of California, have invented certain account of the oblique ties the whole device new and useful Improvements in Back-Supmay be made Very light and yet of sufficient ports for CleaninglVindows, of which the folstrength to support a person cleaning the lowing is a specification. window. Also the arms will lie flat upon the My invention relates to improvements in window-sill and will not interfere with the I0 window-cleaning chairs, the object of my incomfort of the person cleaning the window, vention being to provide a device of this charwho will sit directly upon the window-sill 'acter which while eifective for the purpose and not upon the chair. It will be underintended shall be composed of the fewest posstood, however, that in use a small piece of sible parts and in general construction shall carpet or mat will be placed between the I 5 be as cheap and simple as possible. device and window-sill to prevent the latter My invention therefore resides in the novel from abrasion. construction, combination, and arrangement I claimof parts for the above ends hereinafter fully 1. A window-cleaning chair composed of 6 specified, and particularly pointed out in the sides formed of angle-irons, arms having their 20 claims. outer ends bent and riveted to said angle- In the accompanying drawings, Figure 1 is irons, their inner ends being hooked-to ena perspective view of the window-cleaning gage the inner edge of the window-sill,a sheetchair in position on a window-seat. Fig. 2 is metal plate cut out, as shown, having its asimilar view of the chair detached from the edges riveted to said sides, a tie connecting 25 window-seat. Fig. 3 is a plan view of the the lower ends of said sides, and knobs at chair. said lower ends having yielding surfaces to Referring to the drawings, 1 represents the engage the wall of the house, substantially sides of the chair, which are made of angleas described. V

iron and are straight their whole length. 2. A window-cleaning chair composed of 0 Near the bottom they are connected by a tie sides formed of angle-irons,arms having their 2, and the extreme ends are provided with outer ends riveted to said angle-irons, their knobs 3, of hard wood and faced with rubber inner ends being hooked to engage the inner to prevent the abrasion or removal of paint edge of the Window-sill, a sheet-metal plate from the outside of the house. At the top out out, as shown, having its edges riveted 35 said sides are connected by a plate 5, of sheet to said sides, a tie connecting the lower ends metal, cut away, as shown at 6, for the pu rof said sides, knobs at said lower ends havpose of lightness. At a point nearly twoing yielding surfaces to engage the wall of thirds of the height from the bottom arms 7 the house, and oblique ties riveted to said are connected to the sides 1 by rivets 8. Said arms and to the sheet-metal back, substan- 40 arms are bent around at their front ends, as tially as described.

shown at 9, to form hooks which engage the In witness whereof I have hereunto set my inner edge of the window-sill. Oblique ties hand in the presence of two subscribing wit- 12 are also pivotally attached, as shown at 13, nesses.

to said arms and at 14 to the plate above the J. H. HANAVAN. 45 points of attachment of the arms to said sides. Witnesses:

On account of the sides extending to a con- FRANCIS M. WRIGHT,

siderable distance below the level of the point M. STUART. 

